add array without duplicate values php code example

Example 1: remove duplicate values in array php

<?php
$list_programming_language = array('C#',  'C++', 'PHP', 'C#', 'PHP');
$result = array_unique($list_programming_language);
print_r($result);
?>
  
// ==> 'C#',  'C++', 'PHP'

Example 2: php combine 2 arrays keep duplicates

$arrKeys = array('str', 'str', 'otherStr');
$arrVals = array('1.22', '1.99', '5.17');
function foo($key, $val) {
   return array($key=>$val);
}

$arrResult = array_map('foo', $arrKeys, $arrVals);